選用(yong)(yong)(yong)(yong)適(shi)當的(de)(de)清(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)劑對(dui)超(chao)聲波(bo)清(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)效(xiao)果(guo)(guo)影響較大。超(chao)聲清(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)的(de)(de)作用(yong)(yong)(yong)(yong)機(ji)制主(zhu)要(yao)是空(kong)化作用(yong)(yong)(yong)(yong),除(chu)物質的(de)(de)主(zhu)要(yao)成(cheng)分、油垢或(huo)機(ji)體自身的(de)(de)機(ji)械雜質外,選擇的(de)(de)清(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)液(ye)必(bi)須考慮到(dao)清(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)液(ye)的(de)(de)粘度和(he)表面張力,才(cai)能起到(dao)空(kong)化作用(yong)(yong)(yong)(yong)。超(chao)聲清(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)對(dui)清(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)質量的(de)(de)要(yao)求(qiu)很(hen)高(gao),經(jing)(jing)常使用(yong)(yong)(yong)(yong)幾種(zhong)不(bu)同的(de)(de)清(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)液(ye)在不(bu)同的(de)(de)槽中或(huo)依(yi)次進行,每一種(zhong)清(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)液(ye)的(de)(de)作用(yong)(yong)(yong)(yong)都不(bu)一樣。舉(ju)例來說,三氯乙(yi)烯、氫(qing)氧(yang)化鈉水(shui)溶液(ye)、合成(cheng)洗(xi)(xi)(xi)(xi)滌劑、水(shui)、酒(jiu)精(jing)先后用(yong)(yong)(yong)(yong)來清(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)光(guang)學元件,丙(bing)酮及1*混合清(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)液(ye),用(yong)(yong)(yong)(yong)來清(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)半導體設(she)備,用(yong)(yong)(yong)(yong)2*的(de)(de)清(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)液(ye)和(he)去(qu)離子水(shui),經(jing)(jing)過(guo)多次清(qing)(qing)(qing)洗(xi)(xi)(xi)(xi),零(ling)件表面達到(dao)預期(qi)效(xiao)果(guo)(guo)。
最常見(jian)的(de)(de)(de)(de)方(fang)(fang)式(shi)就(jiu)是(shi)將超(chao)聲(sheng)(sheng)(sheng)波(bo)清(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)浸(jin)(jin)入槽(cao)內(nei),在含有清(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)液的(de)(de)(de)(de)超(chao)聲(sheng)(sheng)(sheng)波(bo)清(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)槽(cao)內(nei),由超(chao)聲(sheng)(sheng)(sheng)波(bo)換能器(qi)產(chan)生(sheng)的(de)(de)(de)(de)超(chao)聲(sheng)(sheng)(sheng)波(bo)振動由清(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)槽(cao)底部輻(fu)射到清(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)液中。尤其適用(yong)(yong)于(yu)中小型零(ling)(ling)件(jian)(jian)(jian)。對大(da)小、重量較大(da)的(de)(de)(de)(de)零(ling)(ling)件(jian)(jian)(jian),可采(cai)用(yong)(yong)局(ju)部清(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)的(de)(de)(de)(de)方(fang)(fang)法,即(ji)將零(ling)(ling)件(jian)(jian)(jian)浸(jin)(jin)入清(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)液中清(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi),未清(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)部分浸(jin)(jin)在清(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)液中,直(zhi)至完全清(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)。另外一種方(fang)(fang)法是(shi)根據大(da)尺寸(cun)零(ling)(ling)件(jian)(jian)(jian)形(xing)狀(zhuang)(zhuang)及局(ju)部清(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)的(de)(de)(de)(de)需要(yao)(yao),設計特殊形(xing)狀(zhuang)(zhuang)的(de)(de)(de)(de)超(chao)聲(sheng)(sheng)(sheng)換能器(qi),實現(xian)局(ju)部清(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)。對具有嚴(yan)格清(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)要(yao)(yao)求的(de)(de)(de)(de)零(ling)(ling)件(jian)(jian)(jian),在不(bu)同的(de)(de)(de)(de)槽(cao)內(nei)采(cai)用(yong)(yong)多種不(bu)同的(de)(de)(de)(de)清(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)液進行超(chao)聲(sheng)(sheng)(sheng)波(bo)清(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)。另外,還可以使(shi)用(yong)(yong)其他的(de)(de)(de)(de)清(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)方(fang)(fang)法,例如(ru)加熱浸(jin)(jin)洗(xi)(xi)(xi)(xi),超(chao)聲(sheng)(sheng)(sheng)波(bo)清(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)等。對含有特厚油脂(zhi)的(de)(de)(de)(de)零(ling)(ling)件(jian)(jian)(jian),一般(ban)先用(yong)(yong)熱浸(jin)(jin)洗(xi)(xi)(xi)(xi)或高溫噴洗(xi)(xi)(xi)(xi),再用(yong)(yong)超(chao)聲(sheng)(sheng)(sheng)波(bo)清(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)。對某些零(ling)(ling)件(jian)(jian)(jian)形(xing)狀(zhuang)(zhuang)過于(yu)復雜(za),如(ru)孔、孔角不(bu)一致等,可采(cai)用(yong)(yong)一次(ci)多次(ci)清(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi),即(ji)在不(bu)同超(chao)聲(sheng)(sheng)(sheng)頻率下(xia)清(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)。
清(qing)(qing)(qing)洗液(ye)的(de)超(chao)(chao)聲振(zhen)動(dong)頻(pin)(pin)(pin)率(lv)對超(chao)(chao)聲清(qing)(qing)(qing)洗效果有很(hen)大(da)的(de)影響(xiang),這(zhe)是因為它對空化的(de)影響(xiang)很(hen)大(da)。通常用(yong)在(zai)20kHz左右。約(yue)20kHz時(shi)容易(yi)產生氣穴,清(qing)(qing)(qing)洗效果明顯。但是對表面要求高(gao)、孔徑或縫(feng)隙小的(de)產品,宜使用(yong)短波(bo)(bo)、能量集中(zhong)的(de)高(gao)頻(pin)(pin)(pin)超(chao)(chao)聲波(bo)(bo)清(qing)(qing)(qing)洗,有時(shi)頻(pin)(pin)(pin)率(lv)可(ke)達800KHz。但高(gao)頻(pin)(pin)(pin)超(chao)(chao)聲振(zhen)動(dong)在(zai)清(qing)(qing)(qing)洗液(ye)中(zhong)衰(shuai)減大(da),作用(yong)距離短,空化強(qiang)度小,清(qing)(qing)(qing)洗效率(lv)低。另外,由于高(gao)頻(pin)(pin)(pin)指向性引(yin)起的(de)“陰(yin)影”區域,部(bu)分部(bu)件不能清(qing)(qing)(qing)潔(jie)。采用(yong)無頻(pin)(pin)(pin)率(lv)跟蹤超(chao)(chao)聲清(qing)(qing)(qing)洗裝置時(shi),需要對發生器頻(pin)(pin)(pin)率(lv)進行調(diao)節,使其輸出信號的(de)頻(pin)(pin)(pin)率(lv)與傳(chuan)感器的(de)固有振(zhen)動(dong)頻(pin)(pin)(pin)率(lv)一致。這(zhe)時(shi),空泡效應(ying)最強(qiang)。清(qing)(qing)(qing)潔(jie)液(ye)中(zhong)可(ke)見大(da)量積聚的(de)白色(se)物質。手指頭(tou)像一根針一樣。
高(gao)(gao)功率密(mi)度(du)(du)(du)的(de)(de)超(chao)聲清(qing)洗是提(ti)高(gao)(gao)超(chao)聲清(qing)洗效率的(de)(de)有效途(tu)徑。然而,功率密(mi)度(du)(du)(du)過(guo)(guo)高(gao)(gao)會由于氣蝕(shi)(shi)過(guo)(guo)強而對工(gong)(gong)件(jian)(jian)(jian)表面造成侵蝕(shi)(shi)(即氣蝕(shi)(shi)腐蝕(shi)(shi)),對工(gong)(gong)件(jian)(jian)(jian)造成損害,尤其是對于有各種涂(tu)層的(de)(de)工(gong)(gong)件(jian)(jian)(jian)或(huo)鋁及鋁合金工(gong)(gong)件(jian)(jian)(jian)。能量密(mi)度(du)(du)(du)過(guo)(guo)大(da)也(ye)不會產生飽和效應。對油污嚴重、形狀復雜、深(shen)孔盲孔的(de)(de)零件(jian)(jian)(jian),清(qing)洗槽要深(shen)、清(qing)洗液粘度(du)(du)(du)大(da)、功率密(mi)度(du)(du)(du)大(da)。高(gao)(gao)頻率超(chao)聲清(qing)洗功率密(mi)度(du)(du)(du)也(ye)很大(da)。能量密(mi)度(du)(du)(du)可在用水或(huo)酒精清(qing)洗或(huo)漂洗時降低。
由于清(qing)洗(xi)液的空化程度與溫(wen)(wen)(wen)度有(you)關,溫(wen)(wen)(wen)度的升(sheng)高有(you)利于汽(qi)蝕,但(dan)蒸(zheng)氣(qi)壓力也(ye)相應增大。溫(wen)(wen)(wen)度過高會使氣(qi)穴減少。所以必(bi)須保持一定的溫(wen)(wen)(wen)度范圍(wei)。例如水(shui)溶劑(ji)清(qing)洗(xi)液一般在45℃左右,三氯(lv)乙烯清(qing)洗(xi)液約75℃,水(shui)約60℃。對(dui)揮發性和易燃(ran)的清(qing)洗(xi)液,溫(wen)(wen)(wen)度不宜(yi)過高。
超(chao)聲(sheng)清洗(xi)的(de)效(xiao)果和質(zhi)量(liang)取決(jue)于超(chao)聲(sheng)清洗(xi)的(de)時(shi)間(jian)(jian)。對(dui)于清洗(xi)質(zhi)量(liang)的(de)要(yao)(yao)求,時(shi)間(jian)(jian)過(guo)短。但是,零件表面氣蝕腐蝕嚴重(zhong)(zhong),從而影(ying)響零件的(de)質(zhi)量(liang),延(yan)長(chang)(chang)使用(yong)壽(shou)命,不(bu)僅(jin)降(jiang)低生產效(xiao)率(lv)。油污染嚴重(zhong)(zhong),形狀復雜的(de)零件,清洗(xi)時(shi)間(jian)(jian)要(yao)(yao)長(chang)(chang)。不(bu)同涂層(ceng)的(de)鋁及(ji)鋁合(he)金零件的(de)清洗(xi)時(shi)間(jian)(jian)不(bu)宜(yi)過(guo)長(chang)(chang)。一般說來,表面光潔(jie)度高的(de)零件的(de)油污較少,清洗(xi)時(shi)間(jian)(jian)不(bu)宜(yi)過(guo)長(chang)(chang)。特定的(de)清潔(jie)時(shi)間(jian)(jian)要(yao)(yao)通(tong)過(guo)實驗確定。
為改善清洗(xi)效果,并確保超(chao)(chao)聲(sheng)(sheng)波(bo)清洗(xi)裝置(zhi)(zhi)的(de)正(zheng)常(chang)使(shi)用,部(bu)件在清洗(xi)槽(cao)中(zhong)的(de)位(wei)置(zhi)(zhi)應引起重視。開(kai)始,要避(bi)免在超(chao)(chao)聲(sheng)(sheng)振(zhen)動輻射面直接擠壓零件,使(shi)輻射面無法(fa)產生預期的(de)振(zhen)動,導致清洗(xi)裝置(zhi)(zhi)無法(fa)正(zheng)常(chang)工作。對(dui)較重的(de)部(bu)件尤其重要。部(bu)件由(you)專用工具吊在清洗(xi)槽(cao)內,并盡可能接近表(biao)面。第(di)二,關鍵的(de)清洗(xi)部(bu)位(wei)必須對(dui)準超(chao)(chao)聲(sheng)(sheng)波(bo)源。三是要考慮清潔(jie)后(hou)污物(wu)能夠(gou)順利排(pai)放。第(di)四,使(shi)清洗(xi)液(ye)在清洗(xi)槽(cao)內的(de)對(dui)流。使(shi)用循環連續補充清洗(xi)液(ye)的(de)方法(fa)時,進液(ye)速(su)度不(bu)宜(yi)過快,否(fou)則由(you)于(yu)補充的(de)清洗(xi)液(ye)中(zhong)氣(qi)體較多,氣(qi)穴就(jiu)會減(jian)弱(ruo)。
在(zai)(zai)盲孔(kong)(kong)清洗時,應先在(zai)(zai)盲孔(kong)(kong)內(nei)注(zhu)入清洗液,然(ran)后將(jiang)盲孔(kong)(kong)對準超聲源。清潔時,要(yao)始終將(jiang)清洗液注(zhu)入孔(kong)(kong)內(nei),以達到顯著的(de)效果。
超(chao)音波(bo)清洗(xi)槽應(ying)(ying)避免撞擊及快速冷卻加熱,以免損壞與傳感器的連接。對(dui)某些零件進行超(chao)聲清洗(xi)時,應(ying)(ying)進行消磁處理,否則(ze)殘余鐵屑不(bu)易清除。
超聲清洗質量檢查主要(yao)是檢查被清潔(jie)零件表面的污垢殘留。
廣東(dong)固特超聲股(gu)份有限公司(si)現已成(cheng)為(wei)集超(chao)(chao)(chao)(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)應用技(ji)術研(yan)究、超(chao)(chao)(chao)(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)清(qing)(qing)洗(xi)(xi)機(ji)設備(bei)(bei)研(yan)發(fa)、生產(chan)、銷售和技(ji)術服務于(yu)一體(ti)的(de)(de)國家高新(xin)(xin)技(ji)術企業(ye)。公司在超(chao)(chao)(chao)(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)行(xing)業(ye)中占有(you)一定的(de)(de)地位,作(zuo)為(wei)業(ye)界公認的(de)(de)超(chao)(chao)(chao)(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)清(qing)(qing)洗(xi)(xi)技(ji)術解決方案專家,固特(te)超(chao)(chao)(chao)(chao)(chao)聲(sheng)(sheng)(sheng)于(yu)2015年率先在新(xin)(xin)三板掛牌(pai)上(shang)市。是擁有(you)專業(ye)研(yan)發(fa)團隊的(de)(de)超(chao)(chao)(chao)(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)清(qing)(qing)洗(xi)(xi)機(ji)廠家,率先提出健康(kang)家用超(chao)(chao)(chao)(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)清(qing)(qing)洗(xi)(xi)機(ji)品類并開發(fa)了百(bai)款產(chan)品,是商用超(chao)(chao)(chao)(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)清(qing)(qing)洗(xi)(xi)機(ji)、工業(ye)超(chao)(chao)(chao)(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)清(qing)(qing)洗(xi)(xi)機(ji)、超(chao)(chao)(chao)(chao)(chao)聲(sheng)(sheng)(sheng)環保設備(bei)(bei)尤(you)其是超(chao)(chao)(chao)(chao)(chao)聲(sheng)(sheng)(sheng)除垢設備(bei)(bei)領域行(xing)業(ye)翹楚,擅(shan)長產(chan)業(ye)資本(ben)和金(jin)融資本(ben)的(de)(de)對接,致力于(yu)成(cheng)為(wei)超(chao)(chao)(chao)(chao)(chao)聲(sheng)(sheng)(sheng)清(qing)(qing)洗(xi)(xi)綜合服務領軍企業(ye)。